Collins entered motion pictures as a stripper in the exploitation film, Secrets of a Windmill Girl (1966), and television, as a maid in the British drama series Upstairs, Downstairs (1971). In 1988, she starred in the one-woman play 'Shirley Valentine' in London, and soon after, brought the role to Broadway, winning a Tony Award. She collected a BAFTA Film Award and was nominated an Academy Award for her performance in the film version, Shirley Valentine (1989). Several stage, film and television performances followed.